Only eukaryotic cells contain membrane bound organelles (such as a nucleus). Prokaryotic cells do not. Therefore, the answer is A.
Fermentation if oxygen is not present
All the changes (or improvement) that take place during the life of an organism is known as <span>"Development"</span>
folding or tilting of rock layers, followed by renewed deposition.
Nitrogen- major part of chlorophyll in plants, which absorbs light energy for the process of photosynthesis.
Magnesium-maintains normal muscle and nerve function.
Calcium-building strong bones and teeth.